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  1. Oxford Dictionary

    nipple

    • IPA[ˈnɪpl]

    英式

    • n.
      the small projection in which the mammary ducts of female mammals terminate and from which milk can be secreted.；the vestigial structure in a male that corresponds to the nipple of a female mammal.

    • noun: nipple, plural noun: nipples

    • 釋義

    名詞

    • 1. the small projection in which the mammary ducts of female mammals terminate and from which milk can be secreted.
    • ▪ the vestigial structure in a male that corresponds to the nipple of a female mammal.
    • ▪ North American the teat of a feeding bottle it is crucial to remove the cap or nipple of the baby's bottle before heating
    • 2. a small projection on a device, especially one from which oil or other fluid is dispensed the centralized greasing point comprises a bank of seven nipples
    • ▪ a short section of pipe with a screw thread at each end for coupling install a threaded nipple between the valve outlet and the shut-off inlet